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authorMel Gorman <mgorman@techsingularity.net>2016-07-28 15:47:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-28 16:07:41 -0700
commit22fecdf5e1702a7724d7cd8697212307e25f571c (patch)
tree7092cc71842e03d1dbc14054f781c832e9ab1beb /mm/vmscan.c
parent7ee36a14f06cc937f6b2c2932c2e48f590970581 (diff)
mm, vmscan: remove redundant check in shrink_zones()
As pointed out by Minchan Kim, shrink_zones() checks for populated zones in a zonelist but a zonelist can never contain unpopulated zones. While it's not related to the node-lru series, it can be cleaned up now. Link: http://lkml.kernel.org/r/1468853426-12858-2-git-send-email-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Suggested-by: Minchan Kim <minchan@kernel.org> Acked-by: Minchan Kim <minchan@kernel.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
-rw-r--r--mm/vmscan.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b3f5b359280d..4978ee9b5892 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2605,9 +2605,6 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc)
for_each_zone_zonelist_nodemask(zone, z, zonelist,
sc->reclaim_idx, sc->nodemask) {
- if (!populated_zone(zone))
- continue;
-
/*
* Take care memory controller reclaiming has small influence
* to global LRU.